Method of damming flow of motten glass



Another, and preferred, Way in which thesired, and preferably of such diameter that l its lower end will remain in place in the orifice after the upper inner end has been consumed. When the combustible plug enters the molten glass, it is promptly consumed and during the process of consumption a sufficient quantity of gas is thereby produced to throw the molten glass adjacent the inner end of the riiice into a mass of congealed bubbles, or froth, which press back the oncoming molten glass into or toward, the furnace, and dam further flow.

l/hen re-flow is desired, the supplemental heating` flames from burners 16 are directed into the snout 10 and, because the mass of glass in the damming bubbles or froth is comparatively small, due to the thin walls of the bubbles, 'said frothy or bubbly mass will be quickly reduced to a highly molten condition so that, the orifice being prerouslv opened, re-iow will be promptly esiablisued within a period much shorter than has heretofore been found possible.

l claim as my invention:

1, The method of damming flow of molten glass or similar material which consists iu- 'torining a dam of congealed bubbles of such material.

f2. The method of damming low of molten glass or similar n'iaterial which consists in forming' a dam of congealed bubbles of lsuch material by inserting a quantity of combustible material into the molten mass at the point to be dammed.

f3. The method of damming flow of molten 91h s or similar material which consists in forming' a, dam of ongealed bubbles of such material by inserting into the molten mass, at the point to be dammed, a quantity of material capable of yielding a quantity of gas under the action of the molten glass.

4. The method of damming out-iow of molten glass.y or similar material, through a downwardly directed orifice, which consists in inserting upwardly through said Orifice,

into the molten material adjacent the oritice, an article capable of coaction` with the molten glass to produce a gas acting to develop, adjacent the inner end of the orifice,

-a eongealed mass of bubbles.

5. The method of damming out-flow of molten glass or a similar material through a downwardly directed passage, which consists in the formation, between the outlet of said passage and the supply of molten glass, of 'a mass of congealed bubbles of said material. t

o. The method of damming out-flow of molten glass or a similar material through a downwardly directed passage, which cons s iu the formation, between the outlet of said passage and the supply of molten glass, of a mass of congealed bubbles of said mate rial by immersing in the glass, at the de sired point, a material capable of coaction with the molten glass-to form a quantity of bubbleforming gas. Y

T. The method of damming outdloWof molten glass or similar materiel, through a dmvnwardly directed passage, which consists of formation between the outlet of said passage and the supply of molten glass, of a mass of congealed bubbles of said mate rial by immcrsing in the glass at the desired point, a piece of .combustible material, such as wood.

8. The method of damming flow of molten glass, or similar material, which consists 'in the formation ot a dam composed of a mass of congealcd bubbles ot said material by immersing in the glass a sutlicient quantity of combustible material, such as woodf 9. The method of damming out-flow of molten glass,v or similar material through a downwardly directed passage'which consists in projecting a plug of combustible n'iaterial, SuchA as wood, upwardly through the outlet and into the molten `glass, thereby forming, between the supply of glass and the outlet of the passage, a mass of con gealed bubbles of glass.

ln witness wherool'l, A'Lxcmnoicn Salir UeLsoN, have hereunto set my hand at Terre Haute, indiana, ,this 14th day of August, A. D. one thousand nine hundred and twenty-three.

ALEXANDER SAM t ELSON. 

